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Railway vehicle side wall integrated forming method

A rail vehicle side wall and forming method technology, which is applied in the field of integrated molding of rail vehicle side walls, can solve the problem of easy dislocation between the side wall panel and the metal skeleton structure, large welding deformation of the metal skeleton structure, and problems with windows and doors. Difficult installation and other problems, to achieve obvious weight reduction effect, improve dimensional accuracy and appearance cleanliness, reduce workload and work difficulty

Inactive Publication Date: 2018-04-17
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology

[0006] In order to solve the existing side wall structure, the welding deformation of the metal skeleton structure is large, which leads to the difficulty of vehicle body assembly and heavy workload, and it is easy to reduce the strength of the local structure. Dislocation is easy to occur when the structure is bonded, which will increase the technical problem of difficulty in the installation of subsequent windows, doors and other structures. The invention provides an integrated forming method for rail vehicle side walls

Method used

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  • Railway vehicle side wall integrated forming method
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  • Railway vehicle side wall integrated forming method

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as Figure 3 to Figure 5 As shown, the rail vehicle side wall integrated molding method of the present invention is to obtain an integrated structure after the sandwich structure composed of the outer skin 2-1, the inner skin 2-3, and the middle filling foam core material 2-2 is cured at high temperature. Wall 2 method. During the manufacturing process, the outer skin 2-1 and the inner skin 2-3 of the peripheral flanging area of ​​the side wall 2 of the integrated structure are directly connected, so as to facilitate the assembly between the major components of the rail vehicle body structure.

[0027] The rail vehicle side wall integrated molding method of the present invention comprises the following steps:

[0028] The first step is to make the corresponding mold 3 according to the outer contour structure of the side wall 2, a...

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Abstract

The invention provides a railway vehicle side wall integrated forming method and relates to the technical field of rail vehicle side wall manufacturing. The method is characterized in that a sandwichstructure formed by an outer skin, an inner skin and middle filling foam core materials is subjected to high-temperature curing to obtain an integrated structure side wall. On the premise that the integrated structure side wall manufactured through the method meets the requirements of the strength, rigidity and the like of the side wall structure of a vehicle body, the modularization and integration degree of the side wall structure is improved, the process flow is improved, and the workload and the working difficulty of the side wall structure are reduced. A high-temperature curing molding process is adopted by the method, so that the structural deformation is small in the forming process, and the overall size precision and the appearance neatness of the side wall structure of the vehiclebody are improved. The weight of the side wall structure of the vehicle body can be effectively reduced, and compared with a traditional metal vehicle body side wall structure, the weight reduction effect is obvious, and the design requirements of a current railway vehicle on the light weight of a vehicle body structure are met.

Description

technical field [0001] The invention relates to the technical field of manufacturing side walls of rail vehicles, in particular to an integrated molding method for side walls of rail vehicles. Background technique [0002] The side wall structure of the existing metal car body is mainly composed of side wall panels and metal skeleton structures. The side wall panels mainly play an aesthetic role. It can show a beautiful and neat visual effect; the metal skeleton structure mainly plays the role of force bearing, the weight of the roof equipment needs to be transferred to the side wall structure of the car body through the metal skeleton structure, and the side wall structure of the car body is borne by the rail shock The vibration load also requires the metal skeleton structure to be transmitted to the roof structure, which constitutes the force transmission path of the car body structure. [0003] The existing metal skeleton structure of the side wall of the car body is mai...

Claims

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Application Information

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IPC IPC(8): B29C70/30B29C70/54B29L31/30
CPCB29C70/30B29C70/54B29L2031/30
Inventor 周伟旭刘玉马艳波
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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